I recently went through an interview where they asked me somewhat similar questions, where I was able to talk about my personal projects and let them see how much I love doing that.
Before the interview, they told me they went through my Github and looked at my projects, and actually called me for an interview partly because of that. My Github served me as a portfolio. Artists have to hand in example of their work, and I believe programmers should do as well.
That should be enough to see most of those who don't comment enough, don't follow rules and standards, etc. It still comes back to the issue of having time to work on personal projects and having it displayed somewhere, but the same could be said for Artists.
Before the interview, they told me they went through my Github and looked at my projects, and actually called me for an interview partly because of that. My Github served me as a portfolio. Artists have to hand in example of their work, and I believe programmers should do as well.
That should be enough to see most of those who don't comment enough, don't follow rules and standards, etc. It still comes back to the issue of having time to work on personal projects and having it displayed somewhere, but the same could be said for Artists.